One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4,6,9,7,8,5,10)(11,12,14,16,15,13,17,18)(19,20)(21,27,29,24)(22,30)(23,26)(25,31)(28,32,34,33)(4,8)(5,6)(11,13)(12,15)(14,16)(17,18)(19,21)(20,24)(22,28)(23,29)(25,32)(26,27)(30,33)(31,34) involution — undirected(3,5,7,6)(4,9,8,10)(12,13)(16,18)(19,22,23,31)(20,25,26,30)(21,28,29,34)(24,32,27,33)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.